XML 61 R48.htm IDEA: XBRL DOCUMENT
v3.20.2

Convertible Notes Payable - Additional Information (Details) - USD ($) | 1 Months Ended | 2 Months Ended |
--- | --- | --- | ---
Oct. 31, 2020 | Aug. 31, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Sep. 30, 2020
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Estimated value of put option liability |  |  |  |  |  | $ 3,261,000 |  | $ 6,650,000
March 2020 Notes |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  |  | $ 10,000,000 |  |  |  |
Convertible notes, maturity date |  |  |  | Aug. 31, 2020 |  |  |  |
Extended debt instrument date |  | Jun. 30, 2021 |  |  |  |  |  |
Interest rate |  |  |  | 3.00% |  |  |  |
Percentage of conversion price per share of preferred stock |  |  |  | 80.00% |  |  |  |
Estimated value of put option liability |  |  |  | $ 2,500,000 |  |  |  |
Unamortized debt discount |  |  |  |  |  |  |  | 0
March 2020 Notes | Subsequent Event |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Debt instrument converted to common stock | 703,503 |  |  |  |  |  |  |
Percentage of conversion price per share of common stock | 80.00% |  |  |  |  |  |  |
March 2020 Notes | Subsequent Event | Common Stock |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Conversion price | $ 14.40 |  |  |  |  |  |  |
March 2020 Notes | Series H Convertible Preferred Stock |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Conversion rate |  |  |  | 80.00% |  |  |  |
Conversion price |  |  |  | $ 1.15 |  |  |  |
March 2020 Notes | First Tranche |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  |  | $ 5,000,000 |  |  |  |
March 2020 Notes | Second Tranche |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  | $ 5,000,000 |  |  |  |  |
December 2019 Notes |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  |  |  |  | $ 6,000,000 |  |
Convertible notes, maturity date |  |  |  |  |  | Aug. 31, 2020 |  |
Extended debt instrument date |  | Jun. 30, 2021 |  |  |  |  |  |
Interest rate |  |  |  |  |  | 3.00% |  |
Percentage of conversion price per share of preferred stock |  |  |  |  |  | 80.00% |  |
Estimated value of put option liability |  |  |  |  |  | $ 1,500,000 |  |
Unamortized debt discount |  |  |  |  |  | $ 700,000 |  | $ 0
December 2019 Notes | Subsequent Event |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Debt instrument converted to common stock | 426,386 |  |  |  |  |  |  |
Percentage of conversion price per share of common stock | 80.00% |  |  |  |  |  |  |
December 2019 Notes | Subsequent Event | Common Stock |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Conversion price | $ 14.40 |  |  |  |  |  |  |
December 2019 Notes | Series H Convertible Preferred Stock |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Conversion rate |  |  |  |  |  | 80.00% |  |
Conversion price |  |  |  |  |  | $ 1.15 |  |
December 2019 Notes | First Tranche |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  |  |  |  | $ 3,000,000 |  |
December 2019 Notes | Second Tranche |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  |  |  | $ 3,000,000 |  |  |
August 2019 Notes |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Convertible notes payable |  |  |  |  |  |  | $ 10,000,000 |
Convertible notes, maturity date |  |  |  |  |  |  | Aug. 31, 2020 |
Extended debt instrument date |  | Jun. 30, 2021 |  |  |  |  |  |
Interest rate |  |  |  |  |  |  | 3.00% |
Percentage of conversion price per share of preferred stock |  |  |  |  |  | 80.00% | 95.00% |
Estimated value of put option liability |  |  |  |  |  | $ 2,500,000 | $ 500,000 |
Unamortized debt discount |  |  |  |  |  | 300,000 | $ 0 |
Increase to put option liability |  |  |  |  |  | $ 2,000,000 |  |
August 2019 Notes | Subsequent Event |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Debt instrument converted to common stock | 718,391 |  |  |  |  |  |  |
Percentage of conversion price per share of common stock | 80.00% |  |  |  |  |  |  |
August 2019 Notes | Subsequent Event | Common Stock |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Conversion price | $ 14.40 |  |  |  |  |  |  |
August 2019 Notes | Series H Convertible Preferred Stock |  |  |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |  |  |
Conversion rate |  |  |  |  |  | 80.00% |  |
Conversion price |  |  |  |  |  | $ 1.15 | $ 1.15 |

X
- Definition Debt instrument maturity date extended. + References No definition available. + Details
Name: | bdsx_DebtInstrumentMaturityDateExtended
Namespace Prefix: | bdsx_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase to put option liability. + References No definition available. + Details
Name: | bdsx_IncreaseToPutOptionLiability
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of conversion price per share of common stock. + References No definition available. + Details
Name: | bdsx_PercentageOfConversionPricePerShareOfCommonStock
Namespace Prefix: | bdsx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of conversion price per share of convertible preferred stock. + References No definition available. + Details
Name: | bdsx_PercentageOfConversionPricePerShareOfConvertiblePreferredStock
Namespace Prefix: | bdsx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Put option liability current. + References No definition available. + Details
Name: | bdsx_PutOptionLiabilityCurrent
Namespace Prefix: | bdsx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Dividend or interest rate associated with the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction. Noncash are transactions that affect recognized assets or liabilities but that do not result in cash receipts or cash payments. Part noncash refers to that portion of the transaction not resulting in cash receipts or cash payments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details
Name: | us-gaap_DebtConversionConvertedInstrumentRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_DebtInstrumentMaturityDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after accumulated amortization, of debt discount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of notes issued in noncash investing and financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 + Details
Name: | us-gaap_NotesIssued1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued during the period as a result of the conversion of convertible securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-30) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=bdsx_MarchTwoThousandAndTwentyConvertibleNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesHPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=bdsx_DecemberTwoThousandAndNineteenConvertibleNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=bdsx_AugustTwoThousandAndNineteenConvertibleNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |